External hoist for a helicopter



FIG. 1 is a perspective view of my new external hoist for a helicopter;

FIG. 2 is a side view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for an external hoistfor a helicopter, as shown and described. 